Steel joists at columns

[jdbpe]

I have a single story building with 44LH9 roof joists that span 69 feet to W18x40 girders. The girders span between 10 inch columns at 26 foot spacing between column lines. The building is resisting lateral loads by perimeter masonry shear walls. The joists are simple span. At the column lines, does the bottom chord of the joist need to straddle a stabilizer plate (not welded though). The stabilizer plate will be welded to the flange of the column.

 

[JAE]

I think so far we have depended upon the joist supplier and contractor to specifically meet OSHA standards. I have seen other engineer's drawings that we've peer reviewed that have the ear plate with hole for the stabilizing cables shown on the engineer's design drawings. These were not used for bottom chord bracing however.

 

[WMO]

I, as a lowly steel detailer, have to do this so the erector can not whine due to non-compliance. It is not an OSHA violation for the fabricator to fabricate it without the plate but it is a violation if the erector proceeds without it. I have never heard of an erector being cited but as a contract detailer, I put them on whether your (EOR) drawings show them or not in order to avoid the arguments and delays.

Mark